It's only a spoiler if you consider that titles like "Murder on the Orient Express" are also a spoiler .

"Ten Little Niggers" (and yes, I am going to use the original title because that's what it was called) has had a slightly unfortunate title history. After that title became "unacceptable" in, I think, the 1960s or 70s, it was republished as "Ten Little Indians". Then that name became "politically incorrect" too, so it was renamed yet again to "And Then There Were None". Let's hope it has more luck with that title, because it's one of Christie's best.

Oh geez. Sometimes I think that political correctness has its drawbacks, too.